EMPIR JRP 14 IND 13 Phot Ind 27

EMPIR JRP 14 IND 13 Phot. Ind 27 -month meeting Work Package WP 4: Measurement comparisons of the methods developed in WP 1 -WP 3

WP 4 Aims and Objectives Main goals of WP 4: • Comparison of methods developed in technical work packages WP 1 -WP 3 with each other and to existing methods. • Comparison of OTDR calibrations, where interested parties from (for example) the European Photonics Industry Consortium (EPIC) will be invited to attend Planned start: Month 24 – Month 30

Task 4. 1. 1 • Compare the method developed for dimensional characterisation of advanced optical fibers (task 1. 1. ). • Methods: – Microscope measurements of the end face of the fibre and standard measurements of the diameter. – Numerical simulations performed with JCM software – VTT will compare the method developed in Task 1. 1 to existing methods and devices at Oplatek and n. LIGHT. Measurement parameters will include thickness, concentricity and non-circularity of fibre layers. Existing methods also include off-line instruments, such as Photon Kinetics PK 2400 and PK 2401 • Planned start: Month 30

Task 4. 1. 2 • Compare the method developed for optical fibre dispersion measurements (task 1. 2. ). • Methods: – METAS will contribute to the comparison of methods to measure the optical fibre dispersion by calibrating a series of reference fibres using a phase shift technique. – Measurements will be performed in the wavelength ranges 1250 nm to 1360 nm and 1450 nm to 1650 nm. • Planned start: Month 30

Task 4. 1. 3 • Compare different approaches for fibre-to-chip coupling (task 2. 2. ). • Expected activities (WWE): – Compare coupling efficiency of mirror-enhanced grating couplers and 3 D couplers – Evaluate coupling bandwidth and wavelength range – Check suitability for multi-fiber access – Correlate measurement results with numerical predictions provided by JCM – Evaluate reproducibility and alignment tolerances for fabrication – Compare experimental realizations in different material system • Planned start: Month 30 Broadband 3 D fiber coupler

Task 4. 1. 4 EAF intercomparison N. Castagna, J. Morel

• Task 4. 1. 4 Encircled Angular Flux measurements EAF is derived from the analysis of the far field pattern at the output of the MM fibre. ' Corresponds to the relative power observed in a circle defined by each angle ’ EMPIR JRP 14 IND 13 Phot. Ind 18 month meeting / 25 -26. 01. 2017 / Madrid 7

A 4. 1. 4 METAS EAF Measuring instrument Fibre positioning unit (XYZ- ) Camera Fibreand Filter holder Camera XYZ translation stage Camera Hamamatsu ORCA Flash 4. 0 LT • CMOS sensor • 2048 x 2048 pixels, with micro lens array • 6. 5 um equivalent pixel size • (13. 3 x 13. 3) mm effective area • AD conversion: 16 bit Optomechanics • • XYZ- alignment of the fibre XYZ alignment of the camera Implementable Intensity filters Light shield over the whole system EMPIR JRP 14 IND 13 Phot. Ind 18 month meeting / 25 -26. 01. 2017 / Madrid 8

A 4. 1. 4 Arden EAF Measuring instrument Camera Reference Light Source Micrometer Stage Shielding from External light Camera § § § 50µm or 62. 5µm MM fibre Camera Lumenera Lm 11059 Insert sub-header here CCD sensor (35 x 25) mm Sensor, 9. 0µm pixel size A/D conversion: 14 bits Canon EF Mount (44. 0 mm sensor to front of camera) Micrometer Translation Stage Let us enlighten you Reference EF-compliant light source www. ardenphotonics. com EMPIR JRP 14 IND 13 Phot. Ind 18 month meeting / 25 -26. 01. 2017 / Madrid 9

A 4. 1. 4 Result of the setup intercomparison • Same 62. 5 mm fibre LED source measured with both instruments • EAF calculated in both cases using METAS analysis software Black: METAS Blue: Arden • Excellent agreement between both measurements (max. EAF deviation of about 0. 0015 ± 0. 0010) • Demonstrates the equivalence between the two hardware systems EMPIR JRP 14 IND 13 Phot. Ind 18 month meeting / 25 -26. 01. 2017 / Madrid 1 0

Task 4. 1. 5 • Compare artefacts developed for Optical Time Domain Reflectometers (OTDR) (task 3. 2. ). • Relevant calibration parameters: – Distance scale – Attenuation • Planned start: Month 24